Air compressing and carbureting machine.



Patented Sept. ll, I900.

A. BOUVIER.

AIR COMPBESSING AND CARBURETING MACHINE.

(Application filed Mar. 9, 1900.

(No Model.)

NI'TED STATES PATENT ()FFIcE.

ADOLPHE BOUVIER, on .LYONS, FRANCE.

AIR COMPRESSIN G AND CARBURETING MACHINE.

IPECIFICATION forming part of Letters Patent No. 657,755, dated September 1 1, 1900.

Application filed March 9, 1900. serial No. 7,956. (No model.)

To all whom it nutty cancer/1,:

Be it known that I, ADOLPHE BoUvIEn, a citizenof the Republic of France, residingat Lyons, France, have invented certain new and useful Improvements in Air Compressing and Carbtrreting Machines, of which the fol-, lowing is a specification.

My invention has relation to an improvement in carburetors of the general type or character illustrated in 'LettersjPatent No. 604,948, granted May 31, 1898, to A. I. Van Vriesland; and in such connection it relates more particularly to the construct-ion and arrangement of such a machine. In Letters Patent No. 604,9i8 a revolving hollow drum is inclosed in a hermetically-sealed chamber or receptacle and the connections between the drum and chamber require the use of at least two stuffing-boxes and the division of the chamber into two compartments.

The principal object of my present invention is to simplify the construction as well as to rearrange the parts of the carburetor of the patent referred to so that but a single stuffed joint between the carburetor-drum and the outside casing or receptacle will be required. This object is attained by a compressing and carbureting apparatus constructed and arranged substantially in the manner hereinafter described and claimed.

The nature and scope of my invention will be more fully understood from the following description, taken in connection with the accompanying drawings, forming part hereof, in which Figure 1 is a longitudinal central section of aearbnreting and compressing apparatus embodying main features of myinvention. Fig. 2 is a side elevational view of a slightly-modificd form of float and valve for discharging excess fluid from the drum to the outer chamber, and Fig. 3 is an end elevational view of the rod supporting the float of Fig. 2.

Referring to the drawings, (t represents a stationary cylinder or chambertraversed centrally and longitudinally by a hollow shaft 0. This shaft 0 is adapted to rotate freely in bearings d (1, carried by the ends of the cylinder a. Secured to the shaft 0 and rotating therewith is a drum f, wholly inclosed within the cylinder at and having on its exterior or periphery a spiral tube c or sections of such a tube arranged in the form of an Archimedean screw. This tube e is adapted at. one end to dip into the fluid g in the base of the cylinder a and to discharge said fluid as the drum f revolves into the interior of a drumlike enlargement 1', located within the drum f. The revolution of this spiral or screwshaped tube 6 also sucks up, in connection with the'liquid g, air or gas entering the cylinder at through the check-valve h. The drum-like enlargement i of the spiral tube 6 empties into the interior of the drum fthe fluid and gas or air which enter the enlargement t' in a state of compression. A portion of the hollow shaft 0 is perforated, as at It, to permit of the entrance of liberated gas orair in the drum finto the hollow shaft 0. At one end of the apparatus the shaft 0 terminates in a stuffing-box Z, into which stuffing-box Z also extends the gas-outlet or offtake-pipe 11, forming an extension of the pipe or shaft 0. When during the operation of the drum f the interior contains an excess or surplus of liquid m, such excess or surplus is readily discharged into the outer cylinder by meansof the following preferred mechanism.

On the shaft cfreely hangs t heringn, which is prevented, as illustrated in Fig. 1, from longitudinal movement on said shaft 0 by means of the collars 0, located on said shaft. This ring n carries a vertically-disposed rod n,suitably weighted, as at g, at its lower end, which weight serves to maintain the rod n in vertical position as the shaft 0 rotates, with a fulcral pointr on said rod always submerged in the liquid m. To the fulcrum r is pivoted a float .9, having a free end or arm i. The drum fat one end is provided with one or more valves 0), having'a stem 1) adapted to be operated to open said valve whenever the free end or arm tof the float sis depressed. This valve 0 controls the outlet of fluid from the drum to the cylinder (0 and is only operated when the height of fluid in the drumfis sufficient to elevate the float s a required distance necessary to cause the arm 15 to operate the valve. In Figs. 2 and 3 a somewhat different construction of valve-operating mechanism is shown, in which the ring it is bifurcated and a block 0 takes the place of the collarsoillustratedin Fig. 1. In all other essential respects the two constructions are, however, similar. The shaft 0 may be rotated by turning the pulley or sprocket c in any well-known way. If necessary, the outer cylindera, may be jacketed in any welhknpwn manner, so as to maintain its contents at any desired temperature.

Having thus described the nature and ob: ject of my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In an air compressing and gamut-sting apparatus, the combination of a stationary outer cylinder or chamber, a hollow shaft traversing the same and having perforations in its walls, an inner 'drnm secured to said shaft, means for rotating said shaft anddrum, a spiral tube located on the periphery of said inner drum, a smaller drum located within the inner drum and forming an enlargement of one end of said spiral tube, said t-uhea lapted to convey fluid from the outer cylinder to the inner drum, an offtake-pipe registering with the hollow rotatable shaft, and means for automatically discharging the surplus liquid accumulating in the inner drum into the outer cylinder, substantially as and for the purposes described.

2. In an apparatus of the character described, a stationary outer receptacle, a hollow shaft traversing the receptacle longitudinaily and having a portion of its walls perforated, an inner'tlrum carried by said shaft and provided with a spiral tube adapted to feed the liquid in the outer receptacle to the inner drum, means for rotating said shaft and drum, a'series of valves located in the walls 9f the inner drum and (t float suspended from said shaft within said drum and adapted to open said valves successively during the rotation of the drum when the liquid in said drum reaches a predetermined height, substantially as and for the purposes described.

Intestimony whereof I have signed this speoitioation in the presence of two subscrilr ing witnesses.

ADOLPI-IE BOUVIER.

Witnesses:

THoMAs N. BROWNE,

MARIN VACHON. 

